Tungsten application in the steel industry, is added in the form of ferro tungsten. Tungsten concentrate and iron filings, etc. are reduced in the arc furnace to melting ferro tungsten.

Tungsten is an important metal element, although its usage is largely due to its physical properties, but its chemical property can not be overlooked, because they determine and limit the application of tungsten in different conditions and the preparation of tungsten.

Tungsten is a metal element with high hardness, high melting point, high boiling point, low vapor pressure and other characteristics, is an indispensable modern metal elements. It is regarded as teeth of industry.

Tungsten is a metal element with high hardness, high melting point, high boiling point, low vapor pressure and other characteristics, is an indispensable modern metal elements.

Tungsten tailings are tungsten ores in fine tailings after grinding, it is a solid waste. Tungsten tailings grade is generally low, 0.1% to 0.7%, resulting in a large number of tailings during the beneficiation process, accounting for more than 90% of the ore. 

Tungsten mine refers to tungsten mine deposit accumulated under geological process. China's exploration of the formal system of tungsten deposits began mainly after the founding of the People's Republic of China. 

Tungsten scheelite is also called calcium tungstate ore. It is named by K.W.Scheele, a Sweden chemist who discovered tungsten. Tungsten scheelite is used for extracting tungsten. Tungsten scheelite appearance is like a rock, color is yellow and white.

Tungsten concentrate is main ore to refining tungsten and raw material with highest quality. According to chemical component of tungsten concentrate, Mn-Fe is of same nature.

China is the largest tungsten producer, exporter and consumer in the world. Its reserve accounts for 58% of the total in the world, and production accounts for 82%. Supply 82% tungsten products to the whole world with 58% of reserve, the sustainable resource becomes a serious problem. 

Tungsten is a scarcity strategic resource, irreplaceable and non-renewable. World tungsten import and export volume and scale have been stable for a long time.